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Flowmaster

Flowmaster 818113 American Thunder Cat-Back Exhaust Dual Out Rear/Side Exit

Compatible with 2019-2024 Chevrolet®/GMC® Silverado®/Sierra® 2.7L, 2 or 4WD with 147-inch or 157-inch wheelbase. This product is not created or sold by Chevrolet®/GMC®.

Part # 818113 Be the first to write a review

Flowmaster 818113 American Thunder Cat-Back Exhaust Dual Out Rear/Side Exit

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$1,002.95
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5

Emissions

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

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This Flowmaster® American Thunder® cat-back exhaust system is manufactured using durable 409 stainless steel throughout and features dual 2.50-inch mandrel bent pipes for better exhaust gas flow, and an American Thunder muffler is used for a moderate sound level and maximum performance. Gain up to 4 hp and 11 lbs-ft of torque at the rear wheels over stock. This system exits dual out the rear or dual out the side, with dual 3.50-inch polished tips for added style and a custom look. The system uses all the existing factory hanger locations and includes installation instructions and all necessary hardware for an easy installation that you can do at home. Backed by Flowmaster's Lifetime Limited Warranty.

Features:

  • Gain up to 4 hp and 11 lbs-ft of torque at the rear wheels
  • Dual 2.50-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
  • Dual 3.50-inch polished tips exit dual out the rear or side for a custom look
  • Includes complete hardware and factory styled hangers in the stock locations for an easy installation
  • 50 Series Big Block performance muffler delivers a deep, moderate performance tone and improves exhaust flow
  • Flowmaster’s Lifetime Limited Warranty
Brand Flowmaster
Emission Code5
Exhaust SeriesAmerican Thunder
Exit PositionDOR/S
Inlet Diameter (in)3.50
Material409 Stainless Steel
Mount TypeUses Factory Hangers
Muffler Body Length (in)22
Muffler ColorBlack
Muffler FinishPainted
Muffler Inlet Diameter (in)3.5
Muffler Inlet LocationCentered
Muffler Material409S Stainless Steel
Muffler Outlet Diameter (in)2.5
Muffler Outlet LocationDual Outlet
Muffler Overall Length (in)28
Muffler Quantity1
Muffler Series50 Series Big Block
Muffler ShapeOval
Muffler TypeReflection
Outlet Diameter (in)2.5
Product TypeCat-Back Exhaust Systems
Sound LevelModerate
System TypeCat-Back
Tip CutAngle
Tip Diameter3.5"
Tip Edge StyleCut
Tip FinishPolished
Tip Length (in)13
Tip LogoEmbossed
Tip Material304 Stainless Steel
Tip Quantity2
Tip ShapeRound
Tip StyleDouble Wall
Tubing Material409S Stainless Steel
UPC090127615539
Manufacturer Part Number818113
California Proposition 65 Chemical NameNickel (Metallic)
California Proposition 65 Chemical Name 2Chromium (hexavalent compounds)
Part Number818113
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Instructions for Part# 818113
Warranty for Part# 818113

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      *Free Shipping & Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

      Some parts are not legal for use in California or other states with similar regulations.